Bump cloud_controller_ng

Dependency updates in cloud_controller_ng:

- build(deps): bump nokogiri from 1.16.7 to 1.18.1 in /docs/v3
    PR: cloudfoundry/cloud_controller_ng#4158
    Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- build(deps): bump json from 2.8.2 to 2.9.1 in /docs/v3
    PR: cloudfoundry/cloud_controller_ng#4159
    Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- build(deps): bump sequel from 5.87.0 to 5.88.0
    PR: cloudfoundry/cloud_controller_ng#4160
    Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>